Composition containing sulfite-waste and shellac.



musrfulu is MICHAEL F. CQUGELIN, OI STOUG-I-ITON, IVIASSAL'YH'USETTS,ASSlIQ- NGBI TO Fill/ED135916 Ji l.

CUMFOSITION CONTAINING- SULFITE-WASTIF; AND SHEIJQAfl 1,1@3,2fi7.Specification of No Drawing.

To all whom it may eonce'm:

Be 1t known that I, MICHAEL F. Cows LIN, a elk-men of the Umted States,resulmg at 'Stought-on, in the county of Norfolk 'a'ncl State ofMassachusetts, havs invented Cation.

Aqueous solut'lsnsj of shellac am used in many industries. The slimlinesubstancss determining the solutisn f the shellac in the water areusually bomx, or ammonia, or mixtures of born and ammonia, but soda orpotash, Or the alkaline salts of any of the alkali metals, includingsuch salts of ammou'ia, may be usecl for dissolving the shellac, I havediscovsred that Waste sulfite liquor, obtains/cl as a by-pmcluct of themm ufacturs 0f pupez: pulp from W006i, or the residues derived from suchliquor by evaporation, may with advantage be incorps -xat'ed with suchalkaline aquesus shellac 50 luiiions, The' mixture-- 0% the twosubstances lizfsolutiony when subsequencl :lrriecl furgfiislies uval-nish film of super-101* lustsuanrl halving. u. fiezgibillty supsriouts that, of s fi'lm ,00mposeof sltllsr of the mu let 0pm pouents singly.By major csmponents I mean shellac and aste sulfits liqusrs, s2" tlwsolid sonstituents m2 the latter. If the saltlion"containing the:shellac andsulfite li um be-usedifus s sizing material rather than as svarnish,- the incresssu flexibility due to figs mixture sf the two isvuntugs,

' The COHlPOSltlOH maybe preparsd by various methods, .lf-er-exampls itmay be; made "frsqusmly an by adding the alkaline water solution. at oneof the major components to u similarly slkalme aqueous SUllhlOn of Enssther com ponent; or the shellac may be (l'iSSOlVECl clarectly 1n*tl1esulfi te liqusr previously rendersd ulkal'me; or a nemrallzed solutmn ofLetters Pu'lve ilmsl July 141,

Application filed February 2, 1914. Serial N0. ilwjl lfr.

that other means may be used to secure the simultaneous :rssuancs 0-1:"?shsllac, sulfits waste, water and ullmfi us by adding in shellac umlsulfiis liqunr a suitable 131 ;011:01 Lion of alkali; or dry shellac muldried rssulus of sulfile liqum: may be llssulvsd in water in presence ofa sulficient pl 'u-pmrtiun of alkali.

There is of course no necessity fur making the sulfits liquor or its e'iupmrulsd product alkiullns, provided there lur'susugh alkali present inthe shellac sslutiun 10 neutralize any acid wlsting in the sulfiiisliquor or in the drietl residue there-f.

The following is citsd as an illusxfimlivs example; (1} Ten 0f Was-liesulfiizs liquor containing ubsul; ten per csnfc. of solids isneutralized by ammonia. fins part of dry shellac is (llSSOlVBCl in WaterWith the aid of ammqnia. The solutions and (2) are then poured tugetllsraucl tl1o1.-- oughly mixed, The solutions may be used in equal *mlumes01' either may prspouderats in the mixture.

To prepare a. clry sizing; ru-fuasrial comprising shellac and asulfitdrsstlrlue in intimsts combinutisn, it i as my merely to evapomiscm'nbi'nscl ti us; and such flrisd prcduct may be auxin 'clissnlvecl, toprepare a varnish m s solution, by simple treatment with dilute alkali.

I claim l. The lisl'sln-rlsscrlbecl compnsiilon of matter containingshellac fills solid c011- stituenls of 'wuslie sulfiae liquor.

2. The herein-escribecl cnm'pssitlon of matter cuntaiuing shellac unclthe solid coustljtuents 0% Waste sulfiis liquor in solusinn in asuitable alkaline. medium.

The herein-described composition of matter ccntuiuiug; shellac and thesnlid (503% 'stitue-nfis 0f vWaste, sulflts liquor, in sslution asuitabls mszlium containing ammsniu,

lIn testimnny w'lmrenf I allix my signature in presence of twoWitnesses.

MICHAEL F. UOUGHLIN. W'tnssses HARE? SHOW,

Lam, "ll". Wi es-ms.

